Resinous polymers from reaction of bis(acetoacetates) and bis(acetoacetamides) with diamines



United States 3,017,388 RESINUUS POLYMERS FROM REACTION GE BIS(ACETOACETATES) AND BIS(AETOACET- AMIDES) WITH DIAMINES John R. (Ialdweli and James C. Martin, Kingsport, Tenn, assignors to Eastman Kodak Company, Rochester, N.Y., a corporation of New Jersey N Drawing. Filed Apr. 17, 1953, Ser. No. 729,056 11 Claims. (Cl. 26065) This invention relates to resinous condensation polymers prepared by reacting bis(acetoacetates) and bis- (acetoacetamides) with various aliphatic and aryl diamines.

The new resinous polymers of the invention are represented by one or other of the following recurring structural units:

wherein in each instance R represents an alkylene group containing from 2 to 12 carbon atoms e.g. CH 2 4, 3 6' 4 s"'- 12 24'-, 331 alkylene group containing from 2-8 carbon atoms interrupted with -O or NH linkages e.g.

etc. an arylene group such as a phenylene group, a diphenylene group, a -CH C H CH group, or a -C H Y-C H group, wherein Y represents and the like. The polymers represented by above structural units designated 2 and 4 are the hydrogenated products of the above structural units designated 1 and 3, respectively. The above defined polymers of the invention are insoluble in most common organic solvents, but dissolve in acrylonitrile polymer solvents such as dimethylacetamide, dimethylformamide, etc. Some of the polymers are soluble to some extent in dilute acids such as hydrochloric acid and can be readily regenerated therefrom by the addition of ammonium hydroxide or alkali metal hydroxides such as sodium hydroxide. Solutions of the polymers on coating give clear, hard and brittle films, which have good antistatic properties making the polymers particularly useful for antistatic coatings on films and textile yarns and fabrics. The polymers are also compatible with various synthetic materials and can be incorporated, for example, in spinning solutions of cellulose acetate, polyacrylonitrile, aorylonitrile polymers having at least 70% by weight of combined acrylonitrile, and the like, to give fibers having improved dyeing properties.

It is, accordingly, an object of the invention to provide a new class of resinous condensation polymers that are characterized by having good antistatic properties and excellent affinity for commercial dyes. Another object is to provide films and textile fabrics coated with the above ice polymers. Another object is to provide synthetic fibers having incorporated therein at least one of the above polymers. Another object is to provide a process for preparing the said polymers. Other objects will become apparent hereinafter.

In accordance with the invention, we prepare our new polymers by heating a bis(acetoacetate) or a bis(acetoacetamide) with a molar equivalent of a diamine, either in a solvent or melt in the presence of an acid catalyst to give a unsaturated linear polymer represented by above structural units I or III. The melt tends to give higher molecular weight products. If a medium or low molecular weight product is desired, the reaction is advantageously carried out in a liquid medium in which the monomers, but not the resulting polymers are soluble. In this case the reaction temperature is preferably maintained at the refluxing temperature of the mixture. Suitable liquid mediums include, for example, 1,2-diethoxyethane and dimethylformamide. Suitable acid catalysts include sulfuric acid, p-toluenesulfonic acid, zinc chloride, etc. However, the reaction can also be carried out in the absence of any catalyst. The polymer prepared as above described may be isolated and used in this form, or it may be taken into solution, for example, in dimethyl formamide and hydrogenated with a metal catalyst such as Raney nickel to. give the corresponding saturated linear polymer represented by above structural units II or IV.

Suitable intermediate bis(acetoacetates) represented by the general formula:

CH COCH COOROCOCH COCH wherein R is as previously defined, include ethylenebis (acetoacetate), the propylenebis (acetoacetates), the butylenebis (acetoacetates), the phenylenebis (acetoacetates), p,p'-methylene bis (phenylacetoacetate), p,p ethylenebis (phenylacetoacetate), p,p'-sulfonylbis (phenylacetoacetate), etc. Suitable intermediate bis(acetoacetamides) represented by the general formula:

CH COCH CONHRNHCOCH COCH wherein R is as previously defined, includes N,N-methylenebis (acetoacetamide), N,N-ethylenebis (acetoacetamide), the N,N'-propylenebis (acetoacetamides), the N,N-butylenebis (acetoacetamides), p,p' methylenebis (N-phenylacetoacetamide), p,p'-sulfonylbis (N-phenylacetoacetamide), etc. The above intermediates can be prepared by known methods, for example, by reacting diketene with an appropriate glycol or diamine.

Suitable diamines employed with the above intermediaes to obtain the polymers of the invention are represented by the general formula:

wherein R is as previously defined, include ethylene diamine, the propylene diamines, the butylene diamines, the hexanediamines, the dodecanediamines, phenylene diamines, the tolidines, the methylenebis anilines, m-xylene-a,a-diamine, etc.

The following examples turther illustrate the invention.

Example 1 A mixture of 4.56 g. (.02 mole) of N,N-ethylenebis (acetoacetamide), 3.96 g. .02 mole) of 4,4-rnethylcnebisaniline, 50 ml. of 1,2-diethoxyethane and 0.1 g. ptoluenesulfonic acid was refluxed for 2 hrs. About 5 ml. of distillate was removed at top of a short Vigreaux column. A gummy polymer came out of solution during this heating period. The liquid was decanted from the polymer. A film cast from this polymer was clear, hard and brittle. The polymer was insoluble in acetone and 3 4 isopropanol, but soluble in dimethylformamide. It conpolymer with which they are compatible, improving aflinisisted essentially of the following recurring unit: ty for acid dyes of products thereof is obtained.

e t if w =N'CHz-N=OCH2CNHCH2CH2NHOCH2C= Example 2 The invention has been described in detail with particu- A mixture of 366 (0.1 mole) of p,pr methylenebis 10 lar reference to preferred embodiments thereof, but it (N phenylacetoacetamide)a 1L6 g (Q1 mole) f Wlll be understood that varlations and modlfications can hexanediamine and 250 ml. of dimethylformamide was be affected Within Spirit a Scope fth6 invention as refluxed for 2 hours. All low boilers were taken oil at the hefelnabove 1 dfifined 111 the pp Claims. top of a short Vigreaux column. The polymer was com- What We 618ml 18: pletely dissolved while the solution was hot, but it precip- A P for P P g 3 1651110115 film-forming itated out on cooling. The warm solution was charged P y Whlch Comprises heating at about from o i a Stainless l, rocking a t l together i h 5 g, 240 C. an acetoacetic acid derivative selected from the of Raney nickel; then hydrogenated at 50 C. and 1500 group consisting of compounds having the following genp.s.i. The resulting polymer was precipitated by pouring eral formulas: the reaction solution into 1000 ml. of rapidly stirred meth- 0 anol. The polymer was mostly soluble in dilute hydro- 2 CH3COCHZCOOROCOCH2COCHB chloric acid and could be regenerated by the addition of and sodium hydroxide. It was useful for anti-halation coat- CH COCI-I CONHRNHCOCH COCH ings and in other photographic uses, as well as being usei ful for impregnating textile fabrics to reduce frictional Whereln R 18 Selected from the group conslstlng Of all static effects. The polymer consisted essentially of the kylefie g p Containing from 242 carbon atoms, a P following recurring unit: ylene group, a diphenylene group, a --CH C H CH CH3 0 O CH:

group, and a C H -Y-C H group wherein Y rep- Example 3 resents O, S, SO CI-I --C H A mixture of 18.3 (.05 mole) of p,p-methylenebis (N- CH(CH CH(CH )CH phenylacetoacetamide) and 6.8 g. (.05 mole) of m-xylenca,a-diamine were stirred at 240 C. for 30 minutes, then OC2H4O "OCH2CBH4CH2O 3 subjected to a vacuum of 1 mm. to remove the last traces CONH- and C(CH with a diamine repreof low boiling material. The polymer became increasingsented by the following general formula:

ly more viscous during the latter stages of heating and 40 H N R NH stirring. The product upon cooling was a hard, brittle 2 2 polymer that gave brittle fibers. It was useful as an wherein R is as above defined, in the proportions of 1 antistatic additive in spinning solutions. The polymer conmole of the said acetoacetic acid derivative per mole of sisted essentially of the following recurring unit: the said diamine.

'=NOH2 E it it r CH-N=C OHzCNHOCHz-ONHC onto:

Example 4 A mixture of 41.8 g. (0.1 mole) of p,p'-sulfonylbis (phenylaceto-acetate), 14.2 g. (0.1 mole) of 1,4-cyclo- 2. A process for preparing a resinous film-forming polymer which comprises heating at about from 121 to hexanedi(methylamine) and 200 ml. of dimethylform- 240 .equlmolar pflgportlons N (ace' amide were reacted and hydrogenated as described in toacetamlde) and 4i4-methylfineblsanilme- Example 2. The resulting polyamine was soluble in A profms for Preparing; a resmous filmformmg dimethylformamide and hot acetic acid and was useful for Polymer Which COI'HPUSBS heating at about r 1 1 t antihalation coatings on photographic film supports. It equimolar Proportions P P'- y consisted essentially of the following recurring units: (N-phenylacetoacetamide) and 1,6-hexanediamine, and

OC CH3 0 0 cm I ll 0 I] l NHOHgCH 0HCH2NHCHCH2CO so 006112011- Hz Hz By processed as described in the above examples, other then hydrogenating the resinous polymer obtained to repoiymers h-aving generally similar properties may be duce just the nitrogen to carbon double bonds therein. prepared from any of the mentioned intermediate bis- 4. A process for preparing a resinous filmforming (acetoacetates) or bis(acetoacetamides) with any of the polymer which comprises heating at about from 121 mentioned diamines. All of the polymers of the invention to 240 C. equimolar proportions of p,p-methylenebis are resinous in character and may be Worked up in any (N-phenylacetoacetamide) and m-xylene-u,u'-diamine. one of several manners, for example, cast as a film from 5. A process for preparing a resinous film-forming solution, used as a solution, or precipitated by pouring a polymer which comprises heating at about from 121 solution of the polymer into a rapidly stirred non-solvent. to 240 C. equimolar proportions of p,p'-sulfonylbis When used as modifying additives in other synthetic (phenylacetoacetate) and 1,4-cyclohexanedi(methylamine), and then hydrogenating the resinous polymer obtained to reduce just the nitrogen to carbon double bonds therein.

6. The process of claim 1 wherein the resinous filmforming polymer obtained is hydrogenated to reduce just the nitrogen to carbon double bonds therein.

7. A resinous film-forming polymer obtained according to the process of claim 1.

8. The resinous film-forming polymer obtained according to the process of claim 2.

9. The resinous film-forming polymer obtained according to the process of claim 3.

10. The resinous film-forming polymer obtained according to the process of claim 4.

References Cited in the file of this patent UNITED STATES PATENTS 2,149,678 Hovey Mar. 7, 1939 2,176,074 Jacobson Oct. 17, 1939 2,195,570 Hovey Apr. 2, 1940 2,730,517 Vogel et a1. Jan. 10, 1956 2,757,164 Block et al. July 31, 1956 2,759,913 Hulse Aug. 21, 1956 FOREIGN PATENTS 523,256 Great Britain July 10, 1940 

1. A PROCESS FOR PREPARING A RESINOUS FILM-FORMING POLYMER WHICH COMPRISES HEATING AT ABOUT FROM 121* TO 240*C. AN ACETOACETIC ACID BERIVATIVE SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING GENERAL FORMULAS: 